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William Blair & Company

William Blair & Company Portfolio holdings

AUM $38.4B
1-Year Est. Return 25.71%
This Fund
S&P 500
This Quarter Est. Return
+10.7%
1 Year Est. Return
+25.71%
3 Year Est. Return
+88.7%
5 Year Est. Return
+104.53%
10 Year Est. Return
+665.86%
AUM
$28.9B
AUM Growth
+$2.35B
Cap. Flow
-$98.3M
Cap. Flow %
-0.34%
Top 10 Hldgs %
23.73%
Holding
1,960
New
105
Increased
655
Reduced
787
Closed
72

Top Buys

Rank Stock Value
1
BALL icon
Ball Corp
BALL
+$39.8M
2
ABNB icon
Airbnb
ABNB
+$37.1M
3
GNRC icon
Generac Holdings
GNRC
+$34.4M
4
U icon
Unity
U
+$29.3M
5
TREX icon
Trex
TREX
+$29M

Top Sells

Rank Stock Value
1
FISV
Fiserv Inc
FISV
+$87.4M
2
TDOC icon
Teladoc Health
TDOC
+$65.6M
3
VRSK icon
Verisk Analytics
VRSK
+$65M
4
AAPL icon
Apple
AAPL
+$52M
5
ACWV icon
iShares MSCI Global Min Vol Factor ETF
ACWV
+$46.5M

Sector Composition

Rank Sector Weight
1 Technology 25.7%
2 Healthcare 19.69%
3 Financials 11.7%
4 Consumer Discretionary 10.72%
5 Industrials 9.79%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
VFC icon
501
VF Corp
VFC
$5.79B
$4.15M 0.01%
50,534
-7,111
-12% -$593K
PRF icon
502
Invesco FTSE RAFI US 1000 ETF
PRF
$10.1B
$4.14M 0.01%
129,005
+76,535
+146% +$2.44M
TMUS icon
503
T-Mobile US
TMUS
$197B
$4.12M 0.01%
28,455
+410
+1% +$56.5K
SDC
504
DELISTED
SmileDirectClub, Inc. Class A Common Stock
SDC
$4.1M 0.01%
472,362
+18,074
+4% +$167K
WSC icon
505
WillScot Mobile Mini Holdings
WSC
$4.17B
$4.08M 0.01%
146,574
-753
-0.5% -$21.6K
TPL icon
506
Texas Pacific Land
TPL
$23.9B
$4.08M 0.01%
22,977
+450
+2% +$78.4K
KHC icon
507
Kraft Heinz
KHC
$30.1B
$4.04M 0.01%
99,197
+16,309
+20% +$686K
COP icon
508
ConocoPhillips
COP
$150B
$4.04M 0.01%
66,251
-15,157
-19% -$845K
MELI icon
509
Mercado Libre
MELI
$92.7B
$4.03M 0.01%
2,587
+294
+13% +$432K
KRYS icon
510
Krystal Biotech
KRYS
$9.72B
$4M 0.01%
58,755
+4,589
+8% +$320K
LQD icon
511
iShares iBoxx $ Investment Grade Corporate Bond ETF
LQD
$32.8B
$3.99M 0.01%
29,705
-4,473
-13% -$590K
XLY icon
512
State Street Consumer Discretionary Select Sector SPDR ETF
XLY
$23.5B
$3.99M 0.01%
44,662
+1,598
+4% +$139K
COF icon
513
Capital One
COF
$137B
$3.97M 0.01%
25,676
-6,354
-20% -$959K
WEC icon
514
WEC Energy
WEC
$35.9B
$3.97M 0.01%
44,624
-1,044
-2% -$98.3K
ADI icon
515
Analog Devices
ADI
$186B
$3.96M 0.01%
22,974
+139
+0.6% +$22.3K
BIIB icon
516
Biogen
BIIB
$31.1B
$3.94M 0.01%
11,388
+1,072
+10% +$325K
SU icon
517
Suncor Energy
SU
$76.5B
$3.91M 0.01%
163,291
-22,073
-12% -$506K
IWS icon
518
iShares Russell Mid-Cap Value ETF
IWS
$16.1B
$3.91M 0.01%
34,017
-1,189
-3% -$136K
MLM icon
519
Martin Marietta Materials
MLM
$32.7B
$3.91M 0.01%
11,102
+6,839
+160% +$2.44M
CGNX icon
520
Cognex
CGNX
$10.4B
$3.87M 0.01%
46,011
+2,516
+6% +$204K
XLU icon
521
State Street Utilities Select Sector SPDR ETF
XLU
$22.9B
$3.86M 0.01%
122,044
-1,566
-1% -$51.3K
GBCI icon
522
Glacier Bancorp
GBCI
$6.48B
$3.85M 0.01%
69,970
-395
-0.6% -$23.1K
PDBC icon
523
Invesco Actively Managed Exch-Traded Commodity Fd Tr Invesco Optimum Yield Diversified Commodity Strategy No K-1 ETF
PDBC
$6.61B
$3.85M 0.01%
191,486
+126,365
+194% +$2.4M
VOT icon
524
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$20.3B
$3.84M 0.01%
16,266
-32,093
-66% -$7.2M
MPWR icon
525
Monolithic Power Systems
MPWR
$67B
$3.83M 0.01%
10,256
-316
-3% -$111K
19 20
21
22 23

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William Blair & Company's Q2 2021 Portfolio in Review

As of Q2 2021, William Blair & Company held 1,960 positions worth $28.9B, up 8.9% from $26.5B the previous quarter. Its ten largest holdings account for 24% of the portfolio.

William Blair & Company's Q2 2021 filing shows 105 new, 655 increased, 787 reduced and 72 closed positions. Its largest new stake was Luminar Technologies: 36,860 shares worth $12.1M. The largest sale was Fiserv Inc, an estimated $87.4M.

By sector, the portfolio is most concentrated in Technology at 26% of assets, up from 26% a quarter earlier, followed by Healthcare and Financials.

  • William Blair & Company's largest Q2 2021 buy was Luminar Technologies: 36,860 shares worth $12.1M.
  • William Blair & Company added most to Ball Corp in Q2 2021, an estimated $39.8M increase.
  • William Blair & Company's biggest Q2 2021 reduction was Fiserv Inc, cutting an estimated $87.4M.
  • William Blair & Company fully exited RealPage, Inc. in Q2 2021, selling an estimated $12.1M.
  • William Blair & Company's ten largest holdings make up 24% of its $28.9B portfolio in Q2 2021.
  • William Blair & Company opened 105 new positions and closed 72 in Q2 2021.
  • William Blair & Company's portfolio value rose 8.9% quarter-over-quarter to $28.9B.

Based on William Blair & Company's 13F filing for Q2 2021, filed 12 Aug 2021.